Principal Mechanical Engineer

At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine connections, where you are valued, accepted and respected for who you are, allowing you to thrive both personally and professionally. This is how we aim to prevent, stop and cure diseases and ensure everyone has access to healthcare today and for generations to come. Join Roche, where every voice matters.### ### The PositionA healthier future. It's what drives us to innovate. To continuously advance science and ensure everyone has access to the healthcare they need today and for generations to come. Creating a world where we all have more time with the people we love. That's what makes us Roche.At Roche, we are working to make next-generation sequencing simple and accessible enough for routine use. By accelerating clinical research, streamlining workflows, and expanding assay menus, we are broadening access to genomic data and lowering barriers to adoption. From robust sample isolation and preparation tools to novel sequencing technology and advanced bioinformatics, we are developing differentiated, highly integrated end-to-end solutions for next-generation sequencing, resulting in a sample in, result out workflow.Our Systems Technology Group, a part of Roche Sequencing Solutions, is focused on creating and advancing technologies to significantly enhance DNA sequencing workflows. We are seeking a Principal Mechanical Engineer to lead the mechanical design, development, characterization, and integration of cutting-edge sequencing systems. This is a hands-on role for a multidisciplinary expert focused on solving the core mechanical challenges at the heart of our next-generation platforms. You will be responsible for concepting, designing, building, and testing novel electro-mechanical, pneumatic, thermal, and fluidic solutions that ensure the ultimate performance, reliability, and longevity of our systems. The Principal Mechanical Engineer will play a vital role in driving innovation for our next-generation instrumentation. We are looking for someone that exhibits a high degree of motivation, independence, and resourcefulness to help us develop solutions to novel DNA Sequencing and automation challenges in a fast-paced and collaborative environment.

• The Opportunity :
• You will lead the end-to-end mechanical design and development of mechanical sub-systems including electro-mechanical, pneumatic, fluidic, and thermal components.
• You will collaborate with engineers from other disciplines (electrical, consumables, materials) to define and manage all critical technical interfaces for your module.
• You will develop novel mechanisms for automated reagent and flow cell loading, clamping, and sealing, ensuring reliability over repeated use.
• You will architect and design thermal control systems, including the specification and integration of heating / cooling elements, sensors, condensation control, and heat management.
• You will partner with internal and external simulation experts to guide and validate CFD, thermal, and optical models, using empirical data to refine designs.
• You will serve as the primary technical expert for your sub-system during integration, verification, and troubleshooting activities, working directly with the Systems Integration team.
• You will lead cross-functional design reviews, driving alignment and resolving technical trade-offs between mechanical design, consumables, materials, and assay requirements.
• You will drive the technical execution for sub-systems, manage timelines for your design deliverables, and contribute to the overall project plan.
• You will create and maintain all design documentation for your sub-systems, including detailed CAD models, drawings, and specifications.
• You will contribute to the technical strategy for the future integrated system, providing data-driven recommendations on architecture and technology choices based on your sub-system's performance.
• You will present technical progress, data, and design trade-offs to the broader project team and key stakeholders, clearly articulating the rationale and impact of engineering decisions.
• A cover letter is required for this application.
• Please outline your relevant experience and explain why you are interested in this role and our company.
• Who You Are : (Required)
• You have a PhD in Mechanical Engineering, Bioengineering, or a related discipline with at least 3 years of relevant industry experience; or a Master's degree in Mechanical Engineering, Bioengineering, or a related discipline with at least 4 years of relevant industry experience; or a Bachelor's degree in Mechanical Engineering, Bioengineering, or a related discipline with at least 7 years of relevant industry experience.
• You have demonstrated deep, hands-on expertise in the design, development, and testing of complex mechanical, electro-mechanical, and pneumatic systems, preferably for life science or diagnostic instrumentation.
• You have demonstrated hands-on expertise in thermal management and the design of precision temperature control systems.
• You have experience developing fluidics systems and their interfaces including pumps, valves, tubing, sensors, and material selection.
• You possess strong proficiency in 3D CAD software (e.g., SolidWorks) for detailed design and the creation of manufacturing drawings.
• You have expertise designing components for a variety of manufacturing processes (e.g., machining, injection molding, 3D printing).
• You are a creative and resourceful problem-solver, with the ability to troubleshoot complex issues at the interface of hardware, software, and chemistry.
• You are proficient with common machine shop tools, as well as test and measurement equipment; proficient with rapid prototyping technology such as 3D printers, laser cutters, CNC mills / lathes, etc; and
• You have a demonstrated level of proficiency with Python, LabVIEW, or similar tools for device control and data acquisition.
• Preferred :
• You have demonstrated the ability to lead technical projects and mentor junior engineers, providing clear guidance and delegating tasks to achieve project goals.
• You have experience using simulation tools (CFD, FEA) to guide design decisions.
• You have previously worked on the development of next-generation sequencing (NGS) or other genomics instrumentation.
• You have experience working in a regulated product development environment
• You have demonstrated strong interpersonal and communication skills with the ability to communicate technical knowledge in a clear and understandable manner, especially to non-experts; you excel at problem-solving skills and the ability to work under ambiguous situations.
• You have excellent organizational skills, including the ability to efficiently evaluate, prioritize and handle multiple changing projects and priorities; you complete work in a timely, accurate and thorough manner.This is an on-site position based in Santa Clara, CA. Relocation benefits are not being offered for this role.The expected salary range for this position based on the primary location of Santa Clara, CA is $110,500 - $205,500. Actual pay will be determined based on experience, qualifications, geographic location, and other job-related factors permitted by law. A discretionary annual bonus may be available based on individual and Company performance. This position also qualifies for the benefits detailed at the link provided below.#RSS2025# Who we areA healthier future drives us to innovate. Together, more than 100’000 employees across the globe are dedicated to advance science, ensuring everyone has access to healthcare today and for generations to come. Our efforts result in more than 26 million people treated with our medicines and over 30 billion tests conducted using our Diagnostics products. We empower each other to explore new

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